Ceiling fan



FIG. 1 is a front, top, right side perspective view of a ceiling fan, showing the claimed design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a front, bottom perspective view thereof.

Broken lines depict portions of the ceiling fan that form no part of the claimed design. 

CLAIM The ornamental design for a ceiling fan, as shown and described. 